Acid seal
[机] 酸对
🧩 词语组成解析
seal
[sil]
n. 密封;印章;海豹;封条;
v. 密封;盖章;决定;封上（信封）;
🗣️ 情景例句
What do you do when you are not working?
工作之余你有什么消遣活动？
Books, like friends, should be few and well chosen.
书籍如朋友，应该少而精。
Mr Hu stood at the starting line. All the runners got ready to run.
胡先生站在起跑线上。所有的运动员都做好了起跑准备。